Brand from France: La Roche-Posay. This anti-aging pure retinol face and neck serum leaves skin feeling smoother, hydrated, and renewed. As a result, the look of lines, wrinkles and premature sun damage is reduced. This retinol serum combines concentrated pure retinol and vitamin B3 for optimal effectiveness while also being suitable for sensitive skin.Pure + gradual release retinol acts gradually on skin for efficacy and tolerance.Lightweight, hydrating texture visibly renews skin, reducing lines and wrinkles and creating a more luminous look.Formula with fragrance.Retinol serum suitable for sensitive skin.Pure retinol can react on contact with the air, turning yellow. This does not impair its tolerance or efficacy.How to use:Apply to clean skin after cleansing, fill dropper with serum and apply 3-4 drops in the evening on face and neck. Always use in conjunction with a moisturizer and daily sunscreen.